In which forum should I ask Lanier related questions?

Where can I find a table of working Lanier printers?

How well does Lanier support free software?

Lanier is a Ricoh brand, therefore the Unix/Linux support for the
Lanier printers comes primarily from Ricoh and this support is
excellent. See also the Ricoh FAQ.

Also Ulrich Wehner from Lanier does excellent work. He answers user
questions on the openprinting.org forums and provides test
PPDs/scripts/drivers/instructions to the users, before they get
released on openprinting.org.